• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 5045
  • 1045
  • 723
  • 521
  • 470
  • 300
  • 124
  • 82
  • 77
  • 61
  • 56
  • 53
  • 51
  • 37
  • 31
  • Tagged with
  • 10383
  • 5443
  • 1481
  • 1146
  • 793
  • 775
  • 702
  • 596
  • 592
  • 580
  • 570
  • 565
  • 548
  • 543
  • 542
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Consideration for the impact of climate change information on stated preferences /

Barak, Boaz. January 2006 (has links)
Thesis (Ph. D.)--University of Rhode Island, 2006. / Includes bibliographical references (leaves 269-279).
42

Climate change and variability and their impacts on the yields of major food crops in Rwanda

Muhire, Innocent 02 July 2015 (has links)
PhD. (Environmental Management) / Climate change and variability has rapidly emerged as one of the most serious threats to sustainable development especially for developing African countries such as Rwanda. Since most of the agricultural activities in African countries are rain-fed, any adverse change in climate is likely to have a devastating effect on output and the livelihood of the majority of the population in the affected countries. Therefore, there should be continuous and regular preparedness to on-going climate variability. Climate change and variability derived information, are most likely to improve the agricultural outcomes when it is integrated into a framework for decision making to mitigate specific risks. It is in that regard, this research aims at analyzing climate change and variability and their impacts on the yields of major food crops in Rwanda. The raw climatic data (temperatures and precipitations) used in this study were obtained from the Rwandan Meteorological Center based in Kigali and Rwanda Environment Management Authority (REMA) while the agricultural records were collected from the National Institute of Statistics of Rwanda (NISR) and the Ministry of Agriculture and Animal Resources (MINAGRI). Length and completeness of records were the basic criteria used to select weather stations in order to have the most complete dataset. Five major crops, namely beans, cassava, Irish potatoes, maize, and sweet potatoes were selected for investigation because they are grown over large areas in most parts of the country during the two agricultural seasons i.e. season A (September-January) and season B (February-June). This research uses a number of statistical techniques in an attempt to quantify the magnitude and significance in temperature, rainfall, number of rainy days, aridity index and rainfall erosivity changes and variability taking place over Rwanda. The same techniques were applied in determining the magnitude and significance of inter-annual variations in food crop yields over Rwanda. A geographical information system (GIS) was used to present spatially the results on maps...
43

Environmental Performance of Multinationals: A Comparative Study Based On Climate Change Strategy

Narayanan, Santhosh 30 June 2014 (has links)
In the context of distinctive international business phenomena of global environmental concern i.e., climate change, this dissertation addresses two research questions. Does multinational enterprise (MNE) orientation (global- or regional-orientation) have an influence on the carbon performance of the multinational? Is there any significant home country effect that drives carbon performance? Stakeholders are increasingly watching the green performance of the firms and investors are looking for information of how firms deal with externalities such as carbon emission. Environmental capabilities are increasingly becoming the core competence of a multinational enterprise. This also enables the MNE to be an active entity and play a key role in global environmental governance. Defining carbon performance as the capability of firms to integrate climate change strategy into the overall strategy, this dissertation used resource-based view and institutional theory as the theoretical framework along with the concept of regionalization of firms. We argue that differences in integrating strategy to reduce carbon emission (carbon performance) are related to MNE orientation and home country effect. Using a sample of 324 firm-years drawn from the carbon disclosure project reports 2011, 2012, and 2013, we analyzed the data running a logistic regression. We found that global-oriented MNEs had better carbon performance compared with regional-oriented MNEs (p This result was against the hypothesized relationship. One of the reasons for this result could be projected good image by the firms in environmentally non-sensitive industries because of cost advantage. Lower environmental institutional distance between home and host country of a firm increased the likelihood of its carbon performance regardless of its orientation as global or regional (p
44

Future changes in extreme rainfall events and circulation patterns over southern Africa

Pinto, Izidine S de Sousa January 2015 (has links)
Includes bibliographical references / Changes in precipitation extremes are projected by many global climate models as a response to greenhouse gas increases, and such changes will have significant environmental and social impacts. These impacts are a function of exposure and vulnerability. Hence there is critical need to understand the nature of weather and climate extremes. Results from an ensemble of regional climate models from the Coordinated Regional Downscaling Experiment (CORDEX) project are used to investigate projected changes in extreme precipitation characteristics over southern Africa for the middle (2036-2065) and late century (2069-2098) under the representative concentration pathway 4.5 (RCP4.5) and 8.5 (RCP8.5). Two approaches are followed to identify and analyze extreme precipitation events. First, indices for extreme events, which capture moderate extreme events, are calculated on the basis of model data and are compared with indices from two observational gridded datasets at annual basis. The second approach is based on extreme value theory. Here, the Generalized Extreme Value distribution (GEV) is fitted to annual maxima precipitation by a L-moments method. The 20-year return values are analyzed for present and future climate conditions. The physical drivers of the projected change are evaluated by examining the models ability to simulate circulation patterns over the regions with the aid of Self-Organizing Maps (SOM).
45

Urban climate adaptation as a process of organisational decision making

Taylor, Anna January 2017 (has links)
In a world that is increasingly urbanised, cities are recognised as critical sites for tackling problems of climate change, both by reducing greenhouse gas emissions and addressing the impacts of changing climate conditions. Unlike climate change mitigation, adaptation does not have one clear, commonly agreed collective goal. Governing and making decisions on climate adaptation in cities entails contestation over knowledge, values and preferences. Currently, the two dominant conceptualisations of adaptation are as cycles or pathways. Do these models adequately theorise what can be empirically observed in cities as to how climate adaptation is undertaken? Most research on urban climate adaptation emanates from the Global North, where political, scientific, economic and administrative systems are well established and well resourced. There is a dearth of empirical research from cities of the Global South contributing to the development of urban climate adaptation theory. This thesis contributes to addressing this gap in two ways. Firstly, by drawing on both conceptual and methodological resources from the field of organisational studies, notably the streams and rounds models of decision making, organisational ethnography and processual case research. Secondly, by conducting empirical case study research on three processes of city scale climate adaptation in Cape Town, South Africa, a growing city facing many development challenges where the local government began addressing climate adaptation over ten years ago. The three adaptation processes studied are: the preparation and adoption of city-wide sectoral climate adaptation plans; the creation of a City Development Strategy with climate resilience as a core goal; and the inclusion of climate change projections into stormwater masterplans. Data were gathered through interviews, participant observation, focus groups and document review, through embedded research within a formal knowledge co-production partnership between the University of Cape Town and the City of Cape Town government. Processual analysis and applied thematic analysis were used to test models of adaptation and decision making against data from the three case studies. The findings suggest that both the cycles and pathways models of climate adaptation inadequately represent the contested and contingent nature of decision making that prevail within the governance systems of cities such as Cape Town. Based on ethnographic knowledge of how Cape Town's local government undertakes climate adaptation, it is argued that the rounds model of decision making provides conceptual tools to better understand and represent how the process of climate adaptation in cities is undertaken; tools that can be used to enhance the pathways model. The study concludes that progress in adapting cities to a changing climate is currently constrained by both the problems and potential solutions or interventions being too technical for most politicians to deal with and prioritize and too political for most technical and administrative officials to design and implement. It calls for urban climate adaptation to be understood as distributed across a multitude of actors pursuing concurrent, discontinuous processes, and thereby focus needs to be on fostering collaboration and coordination, rather than fixating on single actors, policies, plans or projects.
46

The modification of continental polar air over Hudson Bay and eastern Canada.

Burbidge, Frederick Edward. January 1949 (has links)
No description available.
47

Finansiering av hållbar tillväxt : En dokumentstudie om svenska storbankers roll i frågan om hållbar utveckling och hur de ger stöd till företag i sina transformationsarbeten för att möta kraven i Parisavtalet.

Bjursell, Max January 2022 (has links)
Inledning: Klimatförändringar innebär stora risker för den globala såväl som den svenska ekonomin. Politiker har kommit att inse att klimatförändringar därför utgör ett stort och pressande hot. I denna anda representerar Parisavtalet, som undertecknades i december 2015, det första heltäckande klimatavtalet som uttryckligen erkänner behovet av att göra finans flöden förenliga med en väg mot låga utsläpp av växthusgaser och klimattålig utveckling. Som en primär kreditgivare är banksektorn potentiellt en nyckelaktör kring vitala initiativ som skall minska belastningen på miljön. Syftet: Denna uppsats har haft som mål att undersöka svenska storbankers roll i samhället för hållbar utveckling samt hur de ger stöd till företag i omställningsarbetet för att möta kraven i Parisavtalet. Metod: Kvalitativa metoder används i detta arbete för att uppfylla studiens syfte. Forskningsdesignen representerar en dokumentstudie där bearbetning av empiriskt material sker med hjälp av en kvalitativ innehållsanalys. Resultat. Resultatet visar att samtliga storbanker kommit en bra bit på vägen med både sin egen interna omställning i relation till ett mer hållbart arbete som ligger i linje med Parisavtalet. Samtidigt har denna transformationsresa kommit att även påverka de kundrelationer som företagen har genom att de har intagit en coachande roll i syfte att hjälpa andra att arbeta mer hållbart, samt att ingå mer finansiellt och moraliskt hållbara samarbeten. Slutsats: Bearbetad empiriskt underlag påvisar att storbankerna har ett viktigt arbete i sin roll som rådgivare för de svenska företagen i att stödja och påverka företagen i deras strävan att uppnå ett lyckat omställningsarbete inom hållbarhet i enlighet med Parisavtalet
48

Measuring organizational climate for diversity: a construct validation approach

Yeo, Sheau-yuen 15 March 2006 (has links)
No description available.
49

An Examination of the Relationship Between Ethical Work Climate and Moral Awareness

VanSandt, Craig V. 21 September 2001 (has links)
This dissertation draws from the fields of history, sociology, psychology, moral philosophy, and organizational theory to establish a theoretical connection between a social/organizational influence (Ethical Work Climate) and an individual cognitive element of moral behavior (moral awareness). The research was designed to help fill a gap in the existing literature by providing empirical evidence of the connection between organizational influences and individual ethical choices, which has heretofore largely been merely assumed. Additional aspects of moral behavior beyond moral judgment, as suggested by the Four Component Model (Rest, 1994) were investigated. Extensively relying on the work of Victor and Cullen (1987, 1988), Rest (1979, 1986, 1994), and Blum (1991, 1994), seven hypotheses were formulated and tested to determine the nature of the direct relationship between the organizational level Ethical Work Climate and individual level moral awareness, and that relationship as moderated by four demographic and individual variables. Seven of the climate types identified by Cullen, Victor, and Bronson (1993) were replicated in the present study. All three of the hypotheses pertaining to the direct relationship between Ethical Work Climate and moral awareness were supported, as were three of the four hypotheses related to the moderating variables. These results provide evidence that Ethical Work Climate is a primary predictor of individual moral awareness, and that social influence often overrides the effects of individual differences is a work group setting. Implications for future research are provided. / Ph. D.
50

Political culture, governance and climate change adaptation : case study of South Korea

Park, Keumjoo January 2013 (has links)
Many scholars highlight the essence of a participatory governance approach to climate change adaptation and the positive impact of allowing multiple actors participation in the process of decision making as a determinant for successful adaptation to climate change. However, political culture in some societies does not support participation, and people are neither interested nor even aware of political actions. There are very few studies carried out that examine cultural, especially political cultural, influences over governing climate change adaptation. In response to this academic gap, this research aims to investigate how political culture influences a governance approach to climate change adaptation. Using an empirical case study of the process of formulating national climate change adaptation policies in South Korea, this study examines the way decisions are made about climate change policies under ‘dominant bureaucratic’, ‘authoritarian’ and ‘weak participant’ political cultures and investigates how such political cultures will hamper or encourage a governance approach to effective climate change adaptation. This study therefore advances knowledge about how political culture influences climate change adaptation. It provides a basis for comparative analyses of other political cultures in different regions and will enable scholars to understand the challenges that particular forms of governance hold for promoting climate change adaptation.

Page generated in 0.0648 seconds